baber/WOPTO huggingface dataset:
Patent GB-2024999-A (GB)
Title: Pressure Regulators
IPC: G05D16/10
Filed: 1979-07-05
Abstract: A differential piston 4 having a profiled waist or intermediate portion 5 defined between two portions of different radius is slidably mounted on a spindle 6 within a housing having inlet and outlet ports 2, 3. The piston is urged by a spring assembly 2 to allow communication between the inlet and outlet ports through an annular control port formed between the waisted portion of the piston and the interior of the housing. The action of an incoming high pressure fluid at the waisted portion and against the piston portion of greater radius displaces the piston against the action of the spring assembly to maintain a substantially constant pressure and hence flow in a branch line connected to the outlet port 3. Means are provided for adjusting the spring assembly and thereby the operating range of the regulator. <IMAGE>
Patent GB-2026112-A (GB)
Title: Securing brake linings to carriers
IPC: F16D65/092
Filed: 1979-07-09
Abstract: A brake comprises a brake lining (1) secured to a backing (2) which is mounted in a carrier (10) and is slidable forwards and backwards along a guideway (11) in the carrier into and out of a working position in which it can be locked, but to avoid putting a low- friction lining in a brake intended to operate with a high-friction lining, or vice-versa, the carrier (10) is provided with a protuberance (14) in the form of a peg at the closed end (13) of the carrier guideway (11). This registers with a cutaway portion (8) of the forward end (4) of the backing (2) when the backing is in its working position; and although allowing insertion into the guideway (11) of a non-cutaway backing, the protuberance (14) prevents such a backing from being slid into the working position and locked there. Locking is by means of a pivotable plate (15) having a peg (16) which registers with a cutaway portion (9) of the backing (2) of the 'right' lining (1). <IMAGE>
Patent GB-2033421-A (GB)
Title: Cleansing Composition
IPC: C09D9/00
Filed: 1979-10-04
Abstract: A cleansing composition for removing wet and dried paint from painting tools comprises, in addition to up to 25 parts by weight of an emulsifier, from 75 to 98 parts by weight of a solvent comprising from 40 to 70 parts by weight of a natural terpene and from 5 to 49 parts by weight of an alcohol which preferably is a glycol-type compound although diacetone alcohol or an alkanol such as butanol can be present. Optionally, compounds such as ethylene glycol monoethyl ether acetate are present.
Patent GB-2061365-A (GB)
Title: Expanding plug castor
IPC: F16B7/02
Filed: 1979-10-26
Abstract: A castor has a rolling support member set in a carrier having a peg engageable in a socket of the item to be supported by the castor, the peg 6 carrying partly nested elements 7 whose degree of nesting and thereby their radial projection relative to the peg can be varied to grip the interior of the socket by adjusting the distance between two abutments between which the partly nested elements lie. <IMAGE>
Patent GB-2062802-A (GB)
Title: Tube cleaning device
IPC: F28G1/12
Filed: 1979-11-06
Abstract: The invention relates to (condenser 1) tube cleaning devices utilising cleaning balls 2, wherein if, e.g., water passing through tubes contains fibrous material having passed a preliminary sieve the fibres clog a sieve forming part of the cleaning device thereby preventing the passage of the balls. The sieve must therefore be flushed frequently which can cause substantial loss of cleaning balls. This problem is overcome by a device comprising a sieve attachment 4 mounted in the outlet 3 (from the condenser 1), incorporating a V- shaped sieve formed by two hinged sieves 5 followed by a sieve box 6, a cleaning ball return pipe 7 containing a pump 8 being connected to the sieve 5 and leading through a sluice 9 to the (condenser) inlet, the sluice 9 separating the cleaning balls 2 from fibrous material, by a hydrocycline sieve 11 with a tangential inlet union 12, the hydrocycline sieve 11 being connected to the cleaning ball return pipe water and fibrous material passing through the hydrocycline sieve to a valved 15 cooling water return pipe 17 connected in the outlet pipe 16 (from the condenser) at a point beyond the first sieve attachment 4. <IMAGE>
Patent GB-2038325-A (GB)
Title: Preparation of esters of cyclopropanecarboxylic acids
IPC: C07C69/743
Filed: 1979-11-22
Abstract: Process for the preparation of an ester useful as an intermediate in the manufacture of insecticidal pyrethroids having the general formula:   <IMAGE> wherein each of R<1> and R<2> independently represents an alkyl group of 1 to 4 carbon atoms or R<1> and R<2> together represent an alkylene group of up to 5 carbon atoms, each of X<1> and X<2> independently represents a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, a halogen atom, or X<1> and X<2> together represent an alkylene group of up to 5 carbon atoms, or X<1> represents a hydrogen atom and X<2> a 2-halovinyl group, a 2,2-dihalovinyl group or a 2-methyl-1- propenyl group and R represents a 2-methoxyethyl or a 2-ethoxyethyl group, characterised in that a substituted cyclopropanecarbonitrile having the general formula:   <IMAGE> wherein R<1>, R<2>, X<1> and X<2> have the same meaning as in formula I is reacted with 2-methoxyethanol or 2-ethoxyethanol in the presence of 6 to 20% by weight of water, calculated on the total reaction mixture, and in the presence of mineral acid acting as reaction catalyst and as scavenger for ammonia produced during the reaction.
Patent GB-2065909-A (GB)
Title: Welding shield
IPC: F16P1/06
Filed: 1979-12-11
Abstract: A shield suitable for use in welding comprises an opaque front portion 3 having a transparent window 17, which is used for viewing under normal lighting conditions. A light screen 37, which is deeply tinted and movable to a position behind the transparent window 17, serves to protect a workman's eyes against intense light produced during welding. The shield is held by a handle member 29 provided with a trigger member 41 by means of which the light screen 37 may be moved. <IMAGE>
Patent GB-2068775-A (GB)
Title: Lubricated magnetic member
IPC: G11B5/725
Filed: 1980-01-28
Abstract: A magnetic member, such as a magnetic disc, has a smooth continuous layer formed by a solid lubricant and a liquid lubricant. The layer is formed by spraying the magnetic record with a carrier in which the solid and liquid lubricants are dissolved. In a preferred embodiment, tetrafluoroethylene telomer, a solid lubricant, is applied to a magnetic disc and then buffed. Perfluoroalkylpolyether, a liquid lubricant, is then applied and buffed. The lubricants are dissolved in a carrier of trichlorotrifluoroethane.
Patent GB-2043462-A (GB)
Title: Apparatus for simulating football
IPC: A63F3/00
Filed: 1980-02-21
Abstract: A hand-held electronic device for simulating the game of football includes control buttons that provide opposing control units, one for an offensive operator and the other for a defensive operator. A display panel is mounted in the housing of the device, inside which an operational circuit is contained that receives signals from the control units mounted in the housing. The operational circuit causes a multiplicity of offensive and defensive symbols to be displayed on the display panel, and coincidence is detected between various of the players to detect simulated blocks, tackles, pass completions, and interceptions. In one mode the defensive players are all controlled by the operational circuit in a pseudo-random manner, while in another mode one of the defensive players is controlled from the control board.
Patent GB-2043790-A (GB)
Title: Power Generation from Tidal Energy
IPC: F03B13/26
Filed: 1980-03-10
Abstract: An annular float (14) which rises and fails with the tide drives a piston (16) reciprocable in a chamber (15) to pump liquid continuously to drive a turbine (33). The float (14) is ballasted with seawater to assist its descent and the ballast is discharged to assist its ascent. Liquid which is temporarily surplus is stored in chamber 26 and used to drive the turbine during slack. water. Chamber 26 communicates with chamber 27 which contains air compressed by turbine-driven pumps. <IMAGE>
Patent GB-2056652-A (GB)
Title: Hollow-plate heat exchanger
IPC: F28F3/08
Filed: 1980-06-12
Abstract: A hollow-plate element providing a fluid pass for a heat exchanger (e.g. a refrigerant evaporator) comprises a pair of plate members joined together at their edge portions and forming between plate midportions a flow path for said fluid extending between inlet and outlet manifolds formed at the ends of the element by configurations 28'. At said plate midportions are formed rows of separated ribs 42a-h, each rib being angled obliquely to the flow path between the manifolds and each row extending normal to the flow path. The ribs prevent direct linear flow across the rows between the inlet and outlet manifolds. At one end at least of each row the ribs e.g. 42e, 42h are spaced from the edge portion of the plate to provide for reduced pressure drop, a channel 60 forming a by-pass flow relative to the tortuous flow across the ribs 42. Such a channel may be provided both edges of the plate and through the middle of the rows of ribs (e.g. Figure 7). <IMAGE>
Patent GB-2078180-A (GB)
Title: Accessory for a vehicle
IPC: B60R21/02
Filed: 1980-06-18
Abstract: For vehicles which have, in addition to their normal two or four side doors, a rear door allowing access to a luggage space an accessory 10 is provided comprising four or more spaced-apart tubular members 11, 12, 13 and 14 extending transversely of securely connected to two or more other spaced-apart tubular members 15, 16 to form a rigid structure, the members 15, 16 being attached by one respective end to the top edge of a back seat 22 by hinges. In one use configuration the accessory can be moved from a position (shown in dot-dash outline) against a rear face 21 of the seat 22 to a position where it extends vertically from the top edge of the seat 22 to the vehicle's ceiling so that it partitions the luggage space from the seating area. Further U-shaped, tubular members 25 are slidable by respective limbs in respective one's of adjacent pairs of tubular members 11 and 12, 13 and 14 to vary the width of the accessory 10. <IMAGE>
Patent GB-2067138-A (GB)
Title: Erasable display device
IPC: B43L1/12
Filed: 1980-07-17
Abstract: A device providing a display corresponding to selective pressure applied thereto includes a sheet of opaque material having a smooth surface and a sheet of translucent material having dye and a smooth surface. At least one of the sheets is of a pliable plastic and the sheets overlie each other with their smooth surfaces adjacent. The smooth surfaces are urged into intimate contact by selective pressure and adhere to each other, thereby maintaining a display until they are separated. Heating of the sheets prevents failure of the surfaces to adhere to each other upon the application of pressure. <IMAGE>
Patent GB-2055933-A (GB)
Title: Improvements in or relating to dams or barrages
IPC: E02B7/08
Filed: 1980-07-28
Abstract: A dam or barrage 10 provided by a modular receptacle 12 stretched across the bed of a river, and a plurality of caissons 25 in the receptacle in side adjacent relationship. The receptacle may consist of a plurality of modules which are installed progressively across the river, the caissons then being introduced into the receptacle. <IMAGE>
Patent GB-2081112-A (GB)
Title: Automatic toy guns
IPC: F41B7/00
Filed: 1980-08-11
Abstract: A toy gun simulating an automatic rifle is adapted to shoot ping pong balls and comprises a pair of complementary moulded hollow shells 24 which are connected along a central plane to form an elongate frame 12 having a shoulder stock 10 at a rear end, a short cylindrical barrel 14 at a forward end, a supporting handle 18 extending downward from the frame, a magazine portion 20 and a pivotable supplemental magazine 30 extending upward and rearward from the barrel to hold the balls 42 for discharge into the barrel, a firing ram 56 supported by a guide device for reciprocation within the interior of the frame and having a ball-engaging member 58 on the forward end and a head 60 on the rearward end provided with a slot 62 perpendicular to the path of movement of the ram, and a crank 86 rotatably supported by one side of the frame and connected to a support 90 rotatable therewith. The support has a crank pin 100 which engages in the slot 62 as the crank 86 is rotated whereby the ram 56 is pulled back against the force of a spring 82 and is released when the pin slips out of the slot thereby ejecting a ball 42 from the barrel. <IMAGE>
Patent GB-2059012-A (GB)
Title: Conveyor rollers
IPC: F16C13/02
Filed: 1980-09-05
Abstract: A Roller for a roller conveyor comprises a sleeve body receiving roller bearings in the ends thereof, the bearings receiving a spindle. The inner race 24 is mounted on the spindle by means of a resilient seal 42 so that the bearing can slide relative to the spindle in an axial direction while preventing flow of water along the spindle. There may be a single spindle extending through both bearings of each roller, or there may be two stub axles, one for each bearing. The races of the bearings are preferably of plastics material. Each end cap 46 may be a snap fit over a projection 50. <IMAGE>
Patent GB-2069809-A (GB)
Title: Haymaking machine
IPC: A01D78/12
Filed: 1979-08-24
Abstract: A haymaking machine comprises a rake member rotatable about a vertical axis and supporting a number of carrier arms, an outer portion (15) of each such arm having a crank shape and the arm being turnable about a horizontal axis 12 during revolution of the rake member, between a setting in which a tine group (13) has its tines in a generally upright crop-engaging/ working position and a crop-shedding position in which the tines of said group (13) project horizontally rearwards with respect to the direction of rotation (B) of the rake member. A line which contains the connections of the tines of each group (13) to the corresponding outer arm portion (15) is, in the crop-engaging position parallel to and, with respect to the direction of operative rotation (B), at a distance behind, the axis 12 and is at the same distance above ground level as is that axis. <IMAGE>
Patent GB-2071265-A (GB)
Title: Engine elastic mounting
IPC: F16F1/387
Filed: 1981-01-08
Abstract: An elastic mounting for e.g. the suspension of an engine on the chassis of a motor vehicle comprises a hollow connecting element (2) for fixing to the mounting structure, and an attachment member (7) for the oscillating body, which is carried by the connecting element by means of an intermediate block (5) of elastomer having two slots (8) which are curved in shape diametrically opposite each other and have their concave sides facing the outside of the block. Due to the shape of the slot-form apertures, the block of the mounting has a better fatigue strength than that of conventional blocks. Various slot shapes are disclosed. <IMAGE>
Patent GB-2069396-A (GB)
Title: Wire-cutting electroerosion machining method and apparatus
IPC: B23H7/04
Filed: 1981-02-13
Abstract: An improved method of and apparatus for electroerosively wire- cutting a workpiece (W) with a continuous, axially traveling elongate electrode (1) wherein (a) the elongate electrode is formed of a core wire of a magnetic material having an outer layer of electrically conductive material disposed thereon, and (b) a magnetic field, preferably in excess of 100 Gauss and preferably of AC or pulsed nature, is applied at 16 to the region of the machining gap defined between the traveling elongate electrode and the workpiece. The magnetic material is preferably of greater tensile strength and lesser electrical conductivity than the conductive material. Suggested electrode materials are, for the core, stainless steel and, for the outer layer, aluminium, copper, gold and silver. <IMAGE>
Patent GB-2074888-A (GB)
Title: Turbocharged Internal Combustion Engine Exhaust Gas Treatment
IPC: B01D53/94
Filed: 1981-03-31
Abstract: A turbocharged internal combustion engine has a chamber containing a catalyst for removal of pollutants from the exhaust gas from the engine by catalytic oxidation of the pollutants.
Patent GB-2082462-A (GB)
Title: Apparatus for inhalation
IPC: A61M15/00
Filed: 1981-05-29
Abstract: Apparatus for inhalation comprising an insulated container (1) for holding a liquid, and from which liquid vapour is to be inhaled, closure means (2) for closing one end of the container after the liquid has been introduced, air supply means (8), a connecting tube (6, 7) via which air for inhalation is arranged to be fed from the air supply means to a region inside the container adjacent the end remote from the closure means so as to bubble up through the liquid when contained therein, and inhalation tube means (4) arranged to collect the air after it has bubbled through the liquid, the inhalation tube means (4) arranged to collect the air after it has bubbled through the liquid, the inhalation tube means being adapted at one end thereof (5) remote from the container to fit to the nostrils whereby direct inhalation of air and vapour into the nostrils is facilitated.
Patent GB-2078386-A (GB)
Title: Lithographic process and resulting article
IPC: H01L21/027
Filed: 1981-06-02
Abstract: Lithographic fabrication of LSI's depends on inorganic resist to yield excellent edge acuity. Systems depend upon photomigration-of e.g., silver- into a chalcogenide or other glass layer to insolubilize irradiated regions with respect to solvent development. Regulation of silver content and control of processing conditions result in a surface concentration gradient and concomitant lateral diffusion of silver to account for enhanced acuity.
Patent GB-2079393-A (GB)
Title: Cooling hydraulic brake fluid
IPC: F16D65/853
Filed: 1981-07-08
Abstract: A hydraulic brake circuit incorporates a heat exchanger 47 and a pump 30. The pump circulates the fluid around a loop 24,25 which includes the wheel cylinders 16 and the heat exchanger. A branch 21 connects the loop to a master cylinder 19. The pump shown comprises a differential piston 29 operated by brake pressure, but it may alternatively be operated by electric motor, pneumatic actuator or solenoid, for example in response to the brake fluid temperature rising to a predetermined value. <IMAGE>
Patent GB-2103259-A (GB)
Title: Earthquake resistant foundation
Inventor: PLATTEN-HIGGINS IAN HOLMAN
IPC: E02D27/34
Filed: 1981-08-07
Abstract: A timber frame building has vertical supporting columns (not shown) each including four wooden posts secured in spaced relation by panel members. Each supporting column is anchored by a foundation base assembly 1 partially disposed below ground level, the base portions of the wooden posts being received in and secured to spaced vertical metal tubes 2 of the base assemblies 1. The foundations further comprise a plurality of metal link straps 13, 15 which interconnect the base assemblies 1 and serve firstly to accurately locate the base assemblies 1 during construction of the building, and secondly to distribute stresses evenly throughout the foundations in the event of an earthquake. <IMAGE>
Patent GB-2087143-A (GB)
Title: Magnetrons
IPC: H01J25/50
Filed: 1981-11-09
Abstract: In a magnetron employing a re- entrant periodic structure the periodic structure is non-dispersive over such a range of frequencies that the electron stream circulated around the structure in operation can be caused to interact with any selected one of two or more waves of different frequencies and modes supported by the structure. In use the frequency of operation of the magnetron is selected by momentarily injecting a low level priming signal of the relevant frequency into the periodic structure. As described, the periodic structure may be of strapped vane type, with the strap (5, 7) and strap slot (9) dimensions chosen to give the non- dispersive property; or of helical or ring-and-bar structure. (Figures 5 and 6, not shown). <IMAGE>
Patent GB-2091650-A (GB)
Title: Van body
IPC: B62D33/04
Filed: 1981-12-01
Abstract: Savings and economies in the manufacture of box van bodies can be obtained by providing a vehicle body comprising a nearside side panel 12, an offside side panel 13, a front panel 14 and a pair of front corner pillars 16 and 17, a roof panel 11 and a pair of cant rails 20 and 21, a floor panel 10 and a pair of side rails 24, in which the front corner pillars and at least one of the cant rails and the side rails are discrete lengths of a single elongate, constant cross-section construction element. Conveniently, a side wall of one panel-receiving slot in the element provides a base surface of a second slot perpendicular to the first. <IMAGE>
Patent GB-2113673-A (GB)
Title: Production of isocyanates from esters of aromatic carbamic acids (urethanes)
Inventor: SPOHN RALPH JOSEPH
IPC: C07C/
Filed: 1982-02-15
Abstract: Aromatic carbamates are converted to their corresponding isocyanates by liquid phase thermolysis at atmospheric pressure or above in the presence of a catalyst containing Ti, Sn, Sb, or Zr.
Patent GB-2125617-A (GB)
Title: Negative effective mass device
Inventor: GOODMAN COLIN HOWARD LUDLOW
IPC: H01L47/00
Filed: 1982-08-06
Abstract: A negative resistance device is based on the negative effective mass characteristics of the band structures of uniaxially stressed semi-metallic materials such as (Hg,Cd)Te, (Hg,Cd)Se, or grey ???-tin having a diamond-type or zinc blend type structure. The mass states are accessed in the case of the greytin by injecting holes from a p-type InSb (or CdTe) substrate (1) into a rib (2) of n-type ???-tin produced on the substrate by molecular beam epitaxy. The InSb (or CdTe) and the grey ???-tin are substantially lattice matched, so that the tin remains in its o state up to 70 DEG C, instead of 13 DEG C when not so matched. Uniaxial stress is produced by an appropriate degree of lattice mismatch, or by application of a mechanical force e.g. a probe. Two electrodes (4, 5) one on each side of the tin rib (2) provide a four electrode device which exhibits negative mass and negative resistance effects, and if a resonant cavity is connected between these two electrodes (4, 5) an oscillator results. <IMAGE>
Patent GB-2107886-A (GB)
Title: Device for the operation and evaluation of a short-circuit ring sensor
Inventor: LINN KARL-OTTO
IPC: G01R27/26
Filed: 1982-10-08
Abstract: A device is provided for operating and evaluating a short-circuit ring sensor (5) which carries a winding whose inductance is variable in accordance with the position of the short-circuit ring. The device comprises a signal generator (1, 2) which generates a square-wave voltage (UR) and a delta voltage (UD) varying at the same frequency. A current source (3) is driven by the delta voltage (UD) so as to drive through the sensor winding (5) a current of corresponding delta waveform. The voltage (UG) appearing across the winding (5) of the sensor is compared in a comparator (4) with the sum of the square-wave voltage (UC) and the delta voltage (UD). The result of the comparison (UA1) can be compared with the square wave voltage (UR) so as to establish the time difference between the occurrence of the switching edges of these two waveforms. <IMAGE>
Patent GB-2108172-A (GB)
Title: A tunnel for supporting cables on racks
Inventor: WASHBURN BRIAN EDWARD
IPC: H02G9/08
Filed: 1982-10-20
Abstract: A cable tunnel for supporting and protectively enclosing long runs of cable of an industrial complex, such as a nuclear power station or an oil refinery, instead of being constructed in situ, is merely assembled on site from prefabricated modules fitted with cable racks which have been manufactured elsewhere. Each module, comprising opposed walls 12 & 13 which may be two or three metres high and five or six metres long and a roof 14 spanning across between the walls. <IMAGE>